Wikiquality-l

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110 discussions

test discourse
by Ad Huikeshoven 15 Feb '16

15 Feb '16

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Working on blame tool
by jamesmikedupont＠googlemail.com 18 Oct '09

18 Oct '09

FYI, I am working on a blame tool for wikipedia http://fmtyewtk.blogspot.com/2009/10/mediawiki-git-word-level-blaming-one.h… thanks, mike

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Demos of WikiTrust on some Wikipedias are up
by Luca de Alfaro 18 Oct '09

18 Oct '09

Dear All, we finally managed to put up some demos of WikiTrust on some Wikipedias, to start gathering feedback. WikiTrust (http://wikitrust.soe.ucsc.edu/) is an open-source tool that computes, for every word of text: - Who is the author of the word - In which revision was the word introduced - How well the word (and the surrounding text) has been revised. For the latter, we color in orange the background of untrusted text; the shade of orange gradually turns to white for text of increasing trust values. To see the demos, go to https://addons.mozilla.org/en-US/firefox/addon/11087and install for Firefox the WikiTrust add-on. You can then browse the Italian (it.wikimedia.org) and Portuguese (pt.wikimedia.org) Wikipedias, and we are working on adding other Wikipedias to the demo soon. Some notes on the demo: We developed the demo to help us test code suited to running at the Wikimedia Foundation (WMF). But the code does not run there now: the demo is implemented by polling our servers at UC Santa Cruz to obtain the text information. This has a few consequences: - The demo is slow, as it involves a lot of back-and-forth between WMF and UCSC servers. It would be much faster if it ran at the WMF directly. - As the code is not running at the WMF, our servers are not notified when someone edits a page. Thus, when you request information on a revision, we occasionally tell you that we don't have the information, and to try again in ten seconds or so. In the meantime, our server at UCSC fetches from WMF the revision, and analyzes it. Again, this would not happen if WikiTrust was running more tightly integrated in the WMF. - Since we cannot authenticate users (the WMF, not us, is sent the authentication cookies), we had to turn off a button that enabled users to vote for the correctness of text (inspired by the work on flagged revisions: indeed, we could tie the flag to this vote action). The purpose of the demo is to help us test the code and experiment, and feedback is most welcome. Please be tolerant: I am sure there are still kinks, and we will do our best to iron them out. You can find links to mailing lists, bug-tracking systems, code, etc at http://wikitrust.soe.ucsc.edu/ Some notes on text trust: Text trust is computed on the basis of a reputation system for Wikipedia users. Users gain reputation when they make contributions that last in the system. Thus, new users must do some amount of good work before they gain reputation. The trust of the text then depends on the reputation of the user who inserted the text, and on the reputation of all the users who subsequently revised the text. Text can become fully trusted only when it has been revised by multiple high-reputation authors. Thus, WikiTrust highlights changes in articles, and makes it difficult for authors of malicious changes to cover their tracks. If you click on a word of text, you are sent to the revision where the word was inserted. We also can have pop-up balloons that announce the author of each word, but we thought that this too-obvious proclamation of who the author is could lead to silly competition for who last replaced or reworded a sentence. We also had the option of voting for the validity of a revision, thus raising its trust, but since our code does not run at the Wikimedia Foundation (WMF), we have no way of authenticating votes, and this feature is thus currently inactive. --- I hope you enjoy the demo, and I hope this can be a useful instrument for those who patrol, maintain, and improve Wikipedia pages, as well as for those who are just visitors. All the best, Luca, Bo, and Ian

1 1

Call for Participants: NICE interface modification
by Aaron Halfaker 12 Jun '09

12 Jun '09

Hello, I am a researcher in the GroupLens lab (http://grouplens.org) at the University of Minnesota. You might recognize previous work in Wikipedia like "Creating, Destroying, and Restoring Value in Wikipedia" (http://www-users.cs.umn.edu/~reid/papers/group282-priedhorsky.pdf <http://www-users.cs.umn.edu/%7Ereid/papers/group282-priedhorsky.pdf>). As part of our continuing work within Wikipedia, my colleagues and I are conducting an academic (non-commercial) study in which we have developed a modification that is designed to help users work together more effectively by changing the interface for reverting other editors. If you choose to participate in the study, you will be automatically assigned a Wikipedia gadget that will consist of a subset of the modifications we have developed. As part of the study, we will be logging your usage of the tool (ie. when you are reverting other editors). We will also be available for tech support and bug fixes. Most likely there will be a survey at the completion and the complete tool will be made available. Consent form/installer: http://wikipedia.grouplens.org/NICE/consent/ Wikipedia user script page: http://en.wikipedia.org/wiki/User:EpochFail/NICE -Aaron Halfaker GroupLens Research University of Minnesota

3 5

Study on Interfaces to Improving Wikipedia Quality
by avani＠cs.umn.edu 19 Nov '08

19 Nov '08

Dear All, My name is Avanidhar Chandrasekaran (http://en.wikipedia.org/wiki/User_talk:Avanidhar). I work with GroupLens Research at the University of Minnesota, Twin Cities. As part of my research, I am involved in analyzing the usefulness and Necessity of author reputation in Wikipedia. In lieu of this, I have simulated an Interface to color words in an article based on their Age. Being experienced contributors to Wikipedia, I invite you to participate in this study, which involves the following. 1. Please visit the following Instances of wikipedia and evaluate the interface components which have been incorporated into each of them. Each of these use their own algorithm to color text. a) The Wikitrust project http://wiki-trust.cse.ucsc.edu/index.php/Main_Page b) The Wiki-reputation project at Grouplens research http://wiki-reputation.cs.umn.edu/index.php/Main_Page 2) Once you have evaluated the two interfaces, kindly complete this survey on Wikipedia quality http://www.surveymonkey.com/s.aspx?sm=hagN5S1JZHxH6pF9SmXkkA_3d_3d We hope to get your valuable feedback on these interfaces and how Wikipedia article quality can be improved. Thanks for your time Avanidhar Chandrasekaran, GroupLens Research, University of Minnesota

3 2

User contribution weight in articles
by John Erling Blad 06 Sep '08

06 Sep '08

It is possible to calculate a kind of user contribution weight in articles. That is, if I as Jeblad writes the whole article about Norway I would get a ucw of 1.0, if I write half of the article I would get 0.5, and if I write nothing I would get 0. Those numbers could then be used to adjust the numbers of page views to show how high impact I as a contributor has on the total impact of Wikipedia, and also possibly give me an overall rank of "importness" or place mo on some scale of importness. Perhaps a kind of top-tier scaling. Of course this has very litle to do with real trust, its only a measure of my impact on the overall product. It is although a very visible factor that may have some merit as a kind of internal honour for good work. I think most of this is already implemented by de Luca and his friends, it simply has to be reorganized. It is not trust but the weighting mechanisms are much the same. John

1 0

WikiTrust v2 released: reputation and trust for your wiki in real-time!
by Luca de Alfaro 02 Sep '08

02 Sep '08

As some of you might remember, we have been working on author reputation and text trust systems for wikis; some of you may have seen our demo at WikiMania 2007, or the on-line demo http://wiki-trust.cse.ucsc.edu/ Since then, we have been busy at work to build a system that can be deployed on any wiki, and display the text trust information. And we finally made it! We are pleased to announce the release of WikiTrust version 2! With it, you can compute author reputation and text trust of your wikis in real-time, as edits to the wiki are made, and you can display text trust via a new "trust" tab. The tool can be installed as a MediaWiki extension, and is released open-source, under the BSD license; the project page is http://trust.cse.ucsc.edu/WikiTrust WikiTrust can be deployed both on new, and on existing, wikis. WikiTrust stores author reputation and text trust in additional database tables. If deployed on an existing wiki, WikiTrust first computes the reputation and trust information for the current wiki content, and then processes new edits as they are made. The computation is scalable, parallel, and fault-tolerant, in the sense that WikiTrust adaptively fills in missing trust or reputation information. On my MacBook, running under Ubuntu in vmware, WikiTrust can analize some 10-20 revisions / second of a wiki; so with a little patience, unless your wiki is truly huge, you can just deploy it and wait a bit. Go to http://trust.cse.ucsc.edu/WikiTrust for more information and for the code! Feedback, comments, etc are much appreciated! Luca de Alfaro (with Ian Pye and Bo Adler)

6 34

Detector for copyright violations
by John Erling Blad 28 Aug '08

28 Aug '08

There are several attempts to make bots that detect copyright violations. The problem is that there are a lot of such "infringements" that are legal, quotations for example, and then the writers gets pissed because they have used the material in a completely legal way. I have made a Javascript-based solution that seems to solve the problem by placing a user in the loop. The only thing the script does is to mine the web for possible similar texts. Basically the script takes the additional text, extract the plain text, excludes some of the text, breaks it into sentences, uses the sentences to build a query, rematches the result to the sentences, accumulates those and gives some warnings if a match limit is reached. For the moment I try to extend the system to older edits, and also to make it a bit more resistant to small changes in the text. It is already fairly resistive to small reorganizations of the text. John

4 5

Re: [Wikiquality-l] WikiTrust v2 released: reputation andtrustforyour wiki in...
by WJhonson＠aol.com 28 Aug '08

28 Aug '08

What is a squid hit log? **************It's only a deal if it's where you want to go. Find your travel deal here. (http://information.travel.aol.com/deals?ncid=aoltrv00050000000047)

4 3

Re: [Wikiquality-l] Detector for copyright violations
by WJhonson＠aol.com 27 Aug '08

27 Aug '08

In a message dated 8/27/2008 12:02:04 P.M. Pacific Daylight Time, john.erling.blad(a)jeb.no writes: Basically the script takes the additional text, extract the plain text, excludes some of the text, breaks it into sentences, uses the sentences to build a query, rematches the result to the sentences, accumulates those and gives some warnings if a match limit is reached.>> -------------- Wouldn't that flag situations where the author of the work, existing at some site, is giving the copyright to the Wiki as well? That is they are giving-up their copyright. **************It's only a deal if it's where you want to go. Find your travel deal here. (http://information.travel.aol.com/deals?ncid=aoltrv00050000000047)

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